Calculate the difference between heats of reaction at constant pressure and constant volume for the reaction:
 at 

42.

Give a chemical reaction in which ∆ H and ∆E are equal.

What is the relationship between q_pand q_v?

Under what conditions is ∆H = ∆U in a chemical reaction?

What is given of w if:
(i) work is done by the system.
(ii) work is done on the system.

What is the mode of transference of energy, when petrol is subjected to combustion in an internal combustion engine ?

Define heat capacity of a system.

Define specific heat of a substance.

Define molar heat capacity of a substance.

Differentiate between molar heat capacity and molar solution.